

import java.util.*;
import static java.lang.System.out;

public class Guest {
    public static void main(String[] args) {
        List names = new ArrayList();
        collectNameTo(names);
        out.println("访客名单：");
        printUpperCase(names);
    }

    static void collectNameTo(List names) {
      Scanner console = new Scanner (System.in);
      while(true) {
          System.out.print("访客名称：");
          String name = console.nextLine();
                    if(name.equals("quit")) {
              break;
          }
          names.add(name);

    }
  }

    static void printUpperCase(List names) {
        for(int i = 0; i < names.size(); i++) {
            String name = (String) names.get(i);
            out.println(name.toUpperCase());
        }
    }
}
